05/29/2026 Releases: SWML Code Editor, Custom SIP Headers
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Improved
Messaging
Summary
SWML editor now supports Messaging scripts (autocomplete, validation, schema mismatch detection)
REST API call creation now supports custom SIP headers
SWML Code Editor Now Supports Messaging Scripts
The SWML code editor in the new dashboard now provides autocomplete, suggestions, and schema validation for Messaging SWML scripts, matching the support already available for Voice scripts.
The editor automatically applies the correct schema based on your script type. If your script appears to be the wrong type, the editor will flag it and offer a one-click option to switch, making it easier to catch mismatches before they cause issues in production.
This is available on the new dashboard only.
Custom SIP Headers Now Supported in REST API Call Creation
You can now pass custom SIP headers when creating outbound calls through the REST API, giving you greater control over SIP-level metadata for routing, tracing, and downstream system integration. This brings the REST API in line with the existing connect.headers support already available in SWML. Full documentation coming soon.